Gas-burner



A. F'. THOMPSON.

GAS BURNER.

APPLICATION FILED SEPT. 27. 1920,

Patent/ad J 11116 7, 1921.

Sumntoz Aka/2 1 19M dun/M UNITED STATES earENT OFFICE.

GAS-BURNER.

Specification of Letters Patent.

Patented J une 7, 1921.

Application filed September 27, 1920. Serial No. 412,941.

To all whom it may concern Be it known that I, AUoUsrUs F. THOMP- soN, a citizen of the United States of America, and a resident of Huntington, county of Cabell, and State of West Virginia,have invented certain new and useful Improvements in Gas-Burners, of which the following is a full and clear specification.

This invention relates to burners for use in gas-burning grates, heating and cooking stoves and any other apparatus, and the object of this invention, generally stated, is to'so construct the burners as to permit perfect combustion and to eliminate all noise and odor, as more fully hereinafter set forth.

In the drawing,-

Figure l is a perspective View partly broken away of a preferred form of my apparatus;

Fig. 2 is a perspective view of anotherform.

My present invention has relation partic ularly to that type of gas-burner covered by my former Patent No. 909,711, dated J an-' uary 12, 1909.

In its preferred form, my device consists of a gassupply pipe 1, rising from which is a series of Bunsen type of mixer tubes 2, properly spaced along the supply pipe and having their upward ends open and provided with air-ingress openings 3. Affixed to the upper ends of these mixing tubes is a long metallic chamber 4 closed on all sides and at its ends. The upper ends of the mixing tubes communicate with the interior of this chamber 4. The only outlets this chamber 4 is provided with is a series of sets of circular holes 5 formed in the upper wall of the chamber, these circular sets of holes being staggered with reference to the mixer tubes 2. As will be obvious, all of the tubes 2 discharge their contents into the box or chamber 4, and the gas and air are further mingled in this box, after which they make their exit up through the holes 5.

Extending up through the chamber 4 is a series of tubes 6, one being provided for each set of holes 5 and being arranged in the center thereof. These tubes are open at both their upper and lower ends and therefore obviously form air passages, up through which air passes to thus supply air continuously into the center of each tubular flame formed by the circular burner-openings 5.

It will thus be observed that I not only pro vide for a preliminary mixing of the air and gas in the tubes 2 and a distribution of this mixed air and gas at different points along the chamber 4, but I also provide for again and more thoroughly mixing air and gas in the chamber 4, it being obvious that this additional mixing of the air and gas is promoted by locating the sets of burneropenings 5 out of alinement with the mixing tubes. In addition to thus a second time and more thoroughly mixing the air andgas in box 4, I provide each flame with an ample supply of oxygen by means of the tubes 6, this additional supply of oxygen to each flame being delivered into the center of the flame. In this way, as is obvious, I provide for perfect combustion of the gas, and practical experience with this type of burner has proven that the burner operates entirely without any noise as well as without odor, and, further, that by supplying air into the center of each flame under atmospheric pressure only I do away with the objection of having the flame leaping away from the burner.

The above results are obtained with the form of burner shown in Fig. 2, in which the supplemental mixing chamber 4 is made circular in shape.

The nature and scope of the invention having been thus indicated and its preferred embodiment having been specifically de- 7 scribed, what is claimed as new is:

A gas burner comprising a horizontallydisposed and closed mixing-chamber provided at intervals in its top-wall with a series of sets of jet perforations, a plurality of mixing-tubes discharging into and through the bottom wall of said mixingchamber at points staggered with relation to the sets of jet perforations, each of said mixing-tubes being provided with one or more air-intake-openings, a gas-supply-pipe connected successively to the lower ends of the mixing-tubes below the air-intake-openings, and a series of air-supply tubes each being mounted in the top and bottom walls of the mixing-chamber and arranged concentrically with a set of the perforations and open only at its ends to supply air from beneath the mixing-chamber'to the middle of each set of jet perforations.

In testimony whereof I hereunto affix my signature.

AUGUSTUS F. THOMPSON.

Witnesses:

A. E. SALMON, WM. MARTIN. 

